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Audio LRCLK question about ADV7612 EVAL Board

Question asked by chickenfeet on Nov 14, 2013
Latest reply on Dec 2, 2013 by mattp

I have question regarding the EVAL-ADV7612-7511 board. When it powers up running the application (no scripts), and we have no inputs connected, the audio LRCLK is about 150 kHz. This causes problems (pink noise) for our downstream device. If we connect a valid source to EVAL board input, the LRCLK goes to 48kHz and there is no noise. When we disconnect the input, LRCLK remains at 48kHz and there is still no noise. What is the best way to stop the noise from the EVAL Board at startup - before an input is connected?